Wind pressure releasable umbrella/parasol

ABSTRACT

A wind pressure releasable umbrella/parasol each of whose plurality of main ribs has a brace tied to its lower end at one end and the other end hung free in a cantilever manner. An upper cover cloth is shading from the top ends of the main ribs and down to points corresponding to the free ends of the braces, on the hand, a lower cover cloth is shading from the free ends of the braces down to the lower ends of the main ribs. A slit of clearance is formed between slightly overlapped edges of the two cover clothes so as to release wind pressure exerted on the umbrella/parasol by allowing the wind to leak therefrom.

BACKGROUND OF THE INVENTION

[0001] 1. Field of the Invention

[0002] The present invention relates to wind pressure releasableumbrella/parasol, and more particularly, to an umbrella or a parasol inwhich a simple improvement is made to a conventional umbrella/parasolstructure so as to form an umbrella or a parasol being able to evadeattack of strong wind.

[0003] 2. Description of the Prior Art

[0004] An umbrella or a parasol is one of the important and convenientpersonal accoutrements for a man or a woman to protect his/her body fromrain or sunlight. It is the reason why such a primitive accoutrement haslasted so long time serving faborably for human life.

[0005] Meanwhile, there is a bothersome fact that either an umbrella ora parasol often has to suffer from strong wind attack. A great windpressure exerted on the cover cloth of an umbrella/parasol will possiblyflex or even break its ribs resulting in damaging its function.

[0006] Aiming at the above depicted defects, the present invention is topropose a newly developed wind pressure releasable umbrella/parasol thata simple improvement is made to a conventional umbrella/parasolstructure enable it to evade attack of strong wind. This elaboratelydesigned new structure has come out through the present inventor'spersistent efforts in research and experiment for a long time which willbe disclosed herein.

SUMMARY OF THE INVENTION

[0007] It is an object of the present invention to provide a windpressure releasable umbrella/parasol whose cover cloth is splitted intoan upper cover cloth and a lower cover cloth leaving a slit of clearancetherebetween to release the wind pressure.

[0008] It is another object of the present invention to provide a windpressure releasable umbrella/parasol that is constructed simple andhandy with a low production cost.

[0009] The aforesaid objects are achieved by an umbrella/parasol each ofwhose plurality of main ribs has a brace tied to its lower end at oneend and the other end hung free in a contilever manner. An upper covercloth is shading from the top ends of the main ribs down to pointscorresponding to the free ends of the braces, one the other hand, alower cover cloth is shading from the free ends of the braces down tothe lower ends of the main ribs. A slit of clearance is formed betweenslightly overlapped edges of the two cover clothes so as to release windpressure exerted on the umbrella/parasol by allowing the wind to leaktherefrom .

BRIEF DESCRIPTION OF THE DRAWINGS

[0010] To enable a further understanding of the innovative andtechnological content of the invention herein, refer to the detaileddescription of the invention and the accompanying brief description ofthe drawings appened below in which:

[0011]FIG. 1 is a schematic view showing the skeleton of the presentinvention;

[0012]FIG. 2 is a three dimensional deloped view of the presentinvention;

[0013]FIG. 3 is a fragmentary side view showing the skeleton of thepresent invention; and

[0014]FIG. 4 is fragmentary view in another embodiment of the presentinvention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

[0015] Referring simultaneously to FIGS. 1 through 3, a wind pressurereleasable umbrella/parasol of the present invention comprises:

[0016] a spinal column 5;

[0017] a grip 8 provided at the bottom end of the spinal column 5 forthe user to hole;

[0018] a top hoop 4 attached to the top end of the spinal column 5;

[0019] a plurality of slightly curved main ribs whose upper ends tied tothe top hoop 4;

[0020] a bottom hoop 6 encircling over the spinal column 5 being able toslide up and down along the spinal column 5;

[0021] a plurality of auxiliary ribs 3 each tied to the bottom hoop 6with its one end and connected to a proper position at the correspondingmain rib with its other end so that the auxiliary ribs 3 are able topush the main ribs 1 upwards following the movement of the bottom-hoop 6towards the top hoop 4 when opening the umbrella/parasol;

[0022] a plurality of braces 2 each inlaid into a containment kerfformed at the lower end of each main rib 1 with its one end and remainedhanging free in a cantilever manner at its other end for enhancing themechanical strength of the main rib 1;

[0023] an upper cover cloth 71 shading from the top ends of the mainribs 1 and down to points corresponding to the free ends of the braces2;

[0024] a lower cover cloth 72 shading from the free ends of the braces 2and down to the lower ends of the main ribs 1, the lower cover cloth isprovided with a center hole for the main ribs to tunnel through therebyfacilitating installation of said lower cover cloth.

[0025] With this structure, a slit of clearance 73 is formed betweenslightly overlapped edges of the two cover clothes 71, 72 so as torelease wind pressure exerted on the umbrella/parasol by allowing thewind to leak therefrom and preventing the main and auxiliary ribs frombeing flexed or even broken by the wind attack.

[0026] Referring to FIG. 4, the drawing illustrates another embodimentof the present invention. As shown in FIG. 4, a main rib 9 is foldablein two, or even in three sections so that the umbrella/parasol of thepresent invention is more handy and more convenient to carry. Rest partsof the structure are identical as those described in the previousembodiment.

[0027] It reveals from the description of the above embodiments that theinvention has several noteworthy advantages, in particular:

[0028] 1. The cover cloth is splitted into an upper cover cloth and alower cover cloth leaving a slit of clearance therebetween to releasethe wind pressure.

[0029] 2. The present invention is constructed so simple and handy thatit is not only convenient to carry but also able to reduce productioncost.

[0030] Those who are skilled in the art will readily perceive how tomodify the invention. Therefore, the appended claims are to be construedto cover all equivalent structures which fall within scope and spirit ofthe invention.

What is claimed is:
 1. Wind pressure releasable umbrella/parasolessentially comprising: a spinal column: a top hoop attached to the topend of said spinal column: a bottom hoop encircling over said spinalcolumn being able to slide up and down along said spinal column; aplurality of main ribs whose upper ends being tied to said top hoop; aplurality of auxiliary ribs each tied to said bottom hoop with its oneend and connected to a proper position at the corresponding main ribwith its other end; a plurality of braces each tied to the lower end ofcorresponding main rib with its one end, and remained hanging free in acontilever manner at its other end; an upper cover cloth shading fromthe top end of said main ribs and down to points corresponding to thefree ends of said braces; and a lower cover cloth shading from the freeends of said braces and down to the lower end of said main ribs; withthis structure, a slit of clearance is formed between slightlyoverlapped edges of the two cover clothes so as to release wind pressureexerted on said umbrella/parasol by allowing the wind to leak therefrom.2. The umbrella/parasol of claim 1, wherein each of said plurality ofbraces is inlaid into a containment kerf formed in each of saidplurality of main ribs thereby saving useful space.
 3. Theumbrella/parasol of claim 1, wherein said lower cover cloth is providedwith a center hole for said main ribs to tunnel through therebyfacilitating installation of said lower cover cloth.
 4. Theumbrella/parasol of claim 1, wherein said plurality of main ribs areformed of non-articulated rods.
 5. The umbrella/parasol of claim 1,wherein said plurality of main ribs are formed of rods withmulti-articulated joints.
 6. The umbrella/parasol of claim 5, whereinsaid multi-articulated main ribs are foldable in more than two sections.